On Fri, Jul 25, 2008 at 05:47:37PM +0900, SUZUKI Kazuhiro wrote:
> diff -r 1970781956c7 xen/include/asm-ia64/linux-xen/asm/mca_asm.h
> --- a/xen/include/asm-ia64/linux-xen/asm/mca_asm.h Wed Jul 23 12:10:20
> 2008 +0900
> +++ b/xen/include/asm-ia64/linux-xen/asm/mca_asm.h Thu Jul 24 11:08:11
> 2008 +0900
> @@ -58,8 +58,35 @@
> #endif
>
> #ifdef XEN
> +/*
> + * void set_per_cpu_data(*ret)
> + * {
> + * int i;
> + * for (i = 0; i < 64; i++) {
> + * if (ia64_mca_tlb_list[i].cr_lid == ia64_getreg(_IA64_REG_CR_LID)) {
> + * *ret = ia64_mca_tlb_list[i].percpu_paddr;
> + * return;
> + * }
> + * }
> + * while(1); // Endless loop on error
> + * }
> + */
> +#define SET_PER_CPU_DATA(reg,_tmp1,_tmp2,_tmp3) \
> + LOAD_PHYSICAL(p0,reg,ia64_mca_tlb_list);;\
> + mov _tmp1 = ar.lc;; \
> + mov ar.lc = NR_CPUS-1; \
> + mov _tmp2 = cr.lid;; \
> +10: ld8 _tmp3 = [reg],16;; \
> + cmp.ne p6, p7 = _tmp3, _tmp2;; \
> +(p7) br.cond.dpnt 30f;; \
> + br.cloop.sptk.few 10b;; \
> +20: br 20b;;/* Endless loop on error */ \
> +30: mov ar.lc = _tmp1; \
> + adds reg = IA64_MCA_PERCPU_OFFSET-16, reg;;\
> + ld8 reg = [reg]
> +
> #define GET_THIS_PADDR(reg, var) \
> - mov reg = IA64_KR(PER_CPU_DATA);; \
> + SET_PER_CPU_DATA(reg,r5,r6,r7);; \
> addl reg = THIS_CPU(var) - PERCPU_ADDR, reg
> #else
> #define GET_THIS_PADDR(reg, var) \
Please do not use magic number 16.
IA64_MCA_TLB_INFO_SIZE?
--
yamahata
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